noun
A thought experiment in classical mechanics: a hypothetical intellect that, knowing all forces and positions of all particles, could predict the entire future and retrodict the entire past. Used in philosophy and physics discussions.
ラプラスの魔物は、決定論的世界観を象徴する存在としてよく引き合いに出される。
Laplace's demon is often cited as a symbol of a deterministic worldview.